Qlate - Calculator Notepad for Android

Overview of Qlate

Qlate is a combined calculator and note-taking application created by Pranay Karani. It lets you perform live calculations inside a freeform notepad, storing variables and evaluating expressions instantly. The interface focuses on simplicity and clarity so users can work quickly without distractions.

Core capabilities

• Instant evaluation of mathematical expressions with support for common functions and inline comments.
• Persistent variable storage that lets you reuse values across your notes.
• A minimal, attractive interface designed for easy reading and fast interactions.

Typing, navigation, and editing

Qlate includes a custom input experience tailored for mathematical entry. The specialized keyboard speeds up expression entry and includes tools to move the cursor precisely and reverse or reapply edits.

• A keyboard layout built for math input with a trackpad area for cursor placement.
• Undo and redo controls available directly from the keyboard for rapid correction.

Organizing your documents

The app offers a set of tools to manage your sheets so you can find, protect, and recover important work when needed.

• Pinning, searching, previewing, deleting, and restoring sheets from the management view.
• Options to create backups of sheets so you can keep copies outside the app.

General settings and performance

Qlate supports personalization and is optimized to handle large, complex documents while remaining fully usable offline.

• Dark theme and a dedicated notepad mode for focused writing.
• Extensive customization options and performance tuning for big sheets.
• Works without any account—no sign-in or cloud requirement.

Free edition limitations

The free version is fully usable but includes a few restrictions and an ad presence.

• Export to PDF is limited to 15 documents total.
• Ads are shown in the free tier; they can be temporarily turned off from the settings menu.
• Backups can be created, but restoring or importing .qlate files is disabled in the free edition.

Platform and final notes

Qlate is available at no cost on Android devices. It’s a good fit for anyone who needs a flexible, offline tool for ongoing calculations embedded in notes, with many customization and management features to support regular use.